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Principle Quantum Number

Number of ele...

Question

Number of electrons in $M$ shell of an element with atomic number $28$ is _______.

A

18

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B

16

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C

8

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D

2

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Solution

The correct option is A 18
Atomic number 28 represent electronic configuration K, L, M -2, 8, 18. Hence, M shell of the element contain 18 electrons.

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